Question 679095: What are the differences among expressions, equations, and functions? Provide examples of each.
Found 2 solutions by MathLover1, lynnlo:
Answer by MathLover1(20849)   (Show Source):
You can put this solution on YOUR website!
In mathematics, an
 is a general term for any well formed combination of mathematical symbols. It may consist of just one or more numbers, variables, operators, functions, and their arguments that evaluate to a single answer.
example: 
 can have one or two values for the variables used depending on the value equated with the expression.
example: single variable equation: 
An equation   output a value. We can solve the equation and find out the values of the variables. The equation would be valid only for certain values of the variables.
Values of variables in the equations are  based on the value  .
In a vertical line test, graphs of equations intersect the vertical line at  or  points.
Equations  have a graph.
A  always  a value and functions can have solutions based on the input for the values of the variables.
The values of variables in functions are  .
Graphs of functions can intersect the vertical line at   .
Some functions  be graphed.
Functions are  of equations.
example of a function: suppose the function  , what this means is that this function outputs different values for different input values of variable ' ' and if  we have
so, if we substitute different values into and get different outputs, and the important point is that every function outputs a value
Finally, remember that both equations and functions use expressions.
Answer by lynnlo(4176)  (Show Source):
You can put this solution on YOUR website! EXPRESSION:THIS DO NOT HAVE EQUAL SIGNS
7a,OR 4x============example
EQUATION:THE EQUAL OF TWO SIDES OF A FUNCTION
-2+2=4===============example
FUNCTION:INPUTS WITH RESULTS OF AN OUTPUT:
y=3x-2=========example
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